Sofa



FIG. 1 is a front perspective view of a sofa, showing a back of the sofa in a reclined position in accordance with the new design;

FIG. 2 is a front perspective view thereof, showing the back of the sofa in an upright position;

FIG. 3 is a top plan view thereof, showing the back of the sofa in the reclined position;

FIG. 4 is a top plan view thereof, showing the back of the sofa in the upright position;

FIG. 5 is a side perspective view, showing the back of the sofa in the reclined position, an opposite side perspective view being a mirror image thereof;

FIG. 6 is a side perspective view, showing the back top of the sofa in the upright position, an opposite side perspective view being a mirror image thereof;

FIG. 7 is a back perspective view thereof, showing the back of the sofa in the reclined position; and,

FIG. 8 is a back perspective view thereof, showing the back of the sofa in the upright position.

The broken lines shown on the sofa are understood to represent stitching. 

The ornamental design for a sofa, as shown and described. 